So that's a tough one as they are very similar in point cost.
Standard view AKV can be less than SSR, so we will do it for Kidani from time to time, especially for 2 bedrooms (with the extra bathroom). Believe it or not, we've stayed at AKV probably 5-7 times and have never stayed in Savannah View (yes, we are point misers). For instance, for us, the renovated SSR rooms are just as nice for the 2 of us as RIV or GF rooms, but are substantially less points. I would rather go for 7-8 days at SSR/AKV than say 4-5 days at RIV/GFV, but maybe that's just us.
We typically only stay at Kidani when at AKV, however, as the parking situation at Jambo is much worse than Kidani or SSR (though not as bad as BWV). All that said, I did pick up a night (at 4 months out, nonetheless) at an AKV Value Studio next month, so looking forward to checking that out.
For studios, we almost always pick SSR over AKV, and quite honestly, we pick SSR over many other resorts since the renovations. Since we always drive to WDW, it's never been an issue with transportation. Also, as I've said before, being at SSR makes having to be in the Gideon's Virtual Queue so much easier...
We have a GV at SSR this Summer and I am very much looking forward to that!